Magnets, motion and measurement

[sm0ky2]

Kind of relating back your DNA analogy
I look at the "field lines" as being a manifestation
Or reflection of individual magnetic field paths
From pole to pole, consisting of a helical construct
Containing oppositely transitioning N and S pole
Flux packets.


Which are, yes, ultimately propagated by individual atoms.
You bring up an interesting point with the 'randomness'
It is important to realize that, as best we try, not all of the
Atoms in our magnetic material are "magnetized" or polarized
In the desired vector. But rather a majority, that causes the
Cumulative field to orient in the desired vector.
By applying magnetic pressure to points along the field
Like from another magnet- you can change the shape of the field
Which is observable as a change in the pathways visible in
the field lines.


Some magneticians use the sense of touch to feel the shape and
intensity. Some use magnetic viewers of various sorts.
The FEMM simulation software generally mimics these patterns.
There is only one person on earth who can really see the field.
He tries to teach us as best he can, the FEMM people could
learn a thing or two about how to upgrade their software.


Until then, "lines" give us a pretty good view of the macro events.
So it usually works.

[Floor]

@smOkY2  / Dieter

     I try to make sure that I restate this every now and again...

I am not an expert in magnets nor physics.

     But learning more all the time.
.........................................................
I have no objections to using a language in common, just don't
want to get trapped in the words is all.

                        regards
                          regards
                            floor

[sm0ky2]

In the essential sense, they are lines. But braided/twisted/helix lines
And very very tiny. We cannot really see them. We see an effect caused by
A multitude of them.  The more complex our viewers, the more "lines" we see.
When we get really good at making viewers, we start to see the real shape and form
that these lines make as they wrap through the field.


https://youtu.be/c-CbKHbH5QA


And this
https://youtu.be/s9AU6IQE1uk

[Floor]

The word flux has as one of its meanings ...................."change".
In that context it wouldn't make sense to say ..........."a change in the flux"
                                     or                    ........................"a change in the change" either.

In the context ... directly of magnet fields... there are in general .... several kinds of usage for
the word line. 

1. a line drawn to show a vector direction

2. the number of lines ASSIGNED to specific field density.  (arbitrarily agreed to)
                   (these are the standard which we call "field lines)

3. lines seen when iron filings are sprinkled over a paper covering a magnet.
                   (caused by the polar alignments of the iron pieces their selves) 
                                          (these are not the "field lines" per say)

4. A single line supposed (at least by me), to be helical..... and yes very very tiny indeed.
composed of (some how linked... photons / particle waves)
         (The photon is held by scientific convention to be the intermediary of all electromagnetic events)

5. These helical, photonic, lines, twisting together and taking the form of a....
larger though over all.... less tightly coiled helix ...

These can be can be large enough...to be visible to the human eye (but are not actually visible).

6. regions of low density lines (linear holes) (projections the effects of / from the Bloch walls....not real lines per say)
between the high density compoundly helical photonic structures (lines)

Groups of two kinds of lines (5 and 6)  forming both, higher density (lines) and lower density (holes)
regions in the field...and their effect upon light....is seen in the devices presented in Tehoria's demonstrations.
....................................................
A demonstration of a compoundly helical form.

1. Clamp one end a long (round in cross section) shoe string into a bench vice.
2. twist /spin the free end of the string, by rolling it between the palms of your hands.
The string will (after some amount of twisting) begin to "kink".
3. Do not allow the string to unwind.  Hold the free end between two fingers.
4. With your free hand, pinch /grasp the twisted string between to fingers, (at its middle)
then bring  the free end of the string over to its other end (which is clamped in the vice).
5. Release the middle of the string from your grasp (only the middle).
6 Prevent the ends from untwisting as you remove the one end from the bench vice.

You should now have two helices twisted together.

[Floor]

@Dieter
................................
Inside the body of an iron magnet there are three, below, considered, regions.

1. the magnetic polar randomly aligned iron atoms.
2. the magnetic polar aligned iron atoms (magnetic domains)
3. the block walls

The Bloch walls interact with both the random polar elements, and the polar atomic
/ domain elements, but differently with each.

The Bloch wall shields one domain from another in a manner similar to the actions
in pass through TD designs.   Not as a kind of shielding which would simply block the
passage of a magnetic energy flow.  Rather the Bloch wall has polarities distributed
around its circumference, which by the closeness of their proximity to one another,
tend to simultaneously present both attractions and repulsion in near balance) to either
a north or a south pole that approaches the Bloch wall.


The Bloch wall is both the atoms in it and the field it presents.

The polar arrangement of the atoms in a Bloch wall is a helix.

The field around its circumference would not be helical, but more like
a cross hatch (a tick tac toe) complex.

The Bloch walls exist only on the inside of the magnet, their effects extend to out side of
the magnet.

The Bloch wall has no photon "emissions" from its ends which would leave the magnet.
But the wall may effect the external magnetic field  (creates a hole in it).

(

Although I previously stated (in error) that the ends of a Bloch wall (both a N and S
pole is there) reacts magnetically with the exterior elements.  It should have said.... the end is
self sealing / forms a closed magnetic loop.

Rather it is the helical lines in the field from the domains which readily interact at their ends.
.............................................................
The atom in domains are polar aligned end to end N/S N/S N/S........
The domains are also polar aligned end to end N/S N/S N/S........

The photon "emissions" from domains / magnets, which cause magnetic attraction / repulsion force
are helical.
......................................
All three regions have electric charge interactions (ionic or covalant bonding)
the "chemical". 

And again ...............this is just my take on a model.